Trustworthy (adjective)

1. Able to be trusted to do or provide what is needed.
2. Reliable, dependable, honest and keeping one's promise.

Origin:

Late middle english: from trust + -worthy.

Examples:

1. She was a trustworthy employee who was always dependable.
2. He was a trustworthy friend who kept his word.
3. The company's reputation was built on being trustworthy.
4. It was hard to find a trustworthy babysitter.
5. It's important to have trustworthy advisors in business.